IMPROVED PROCESS FOR THE PRODUCTION OF EXPANDED MATERIAL BASED ON SULFONE POLYMERS

IMPROVED PROCESS FOR THE PRODUCTION OF EXPANDED MATERIAL BASED ON SULFONE POLYMERS

A process for the production of expanded material based on sulfone polymers includes an extrusion step in an extruder of virgin sulfone polymer with the injection of at least one expanding agent and in the presence of at least one nucleating agent, and a recycling step of part of the expanded materi...

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Hauptverfasser: SHELTON, Robert Wayne, ALIPERTA, Luigi, BRESSAN, Raffaela, JACKSON, Stephen Leonard
Format: Patent
Sprache:eng ; fre ; ger
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AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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creator SHELTON, Robert Wayne
ALIPERTA, Luigi
BRESSAN, Raffaela
JACKSON, Stephen Leonard
description A process for the production of expanded material based on sulfone polymers includes an extrusion step in an extruder of virgin sulfone polymer with the injection of at least one expanding agent and in the presence of at least one nucleating agent, and a recycling step of part of the expanded material, which provides a recycled product used as raw material fed to the extruder in combination with the virgin sulfone polymer.
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subjects AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
title IMPROVED PROCESS FOR THE PRODUCTION OF EXPANDED MATERIAL BASED ON SULFONE POLYMERS
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